Home / 938,538.38-1,296,252.17-636,207.50

Finding the Fourth Proportional to 938,538.38, 1,296,252.17 and 636,207.50

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Solution

The fourth proportional to 938,538.38, 1,296,252.17 and 636,207.50 is: 878,691.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,538.38 : 1,296,252.17 = 636,207.50 : x
  2. Step 2: Convert to fraction form
    938,538.38/1,296,252.17 = 636,207.50/x
  3. Step 3: Cross multiply
    938,538.38x = 1,296,252.17 × 636,207.50
  4. Step 4: Simplify right side
    938,538.38x = 824,685,342,782.98
  5. Step 5: Solve for x
    x = 824,685,342,782.98/938,538.38
  6. Step 6: Final answer
    x = 878,691.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.